Privacy Policy

Last Updated: April 22, 2026

DASTO ("we," "us") is committed to protecting your privacy. This policy explains how EmoLog handles your data.

1. Device Permissions We Request

EmoLog only requests the following device permissions:

• Location: Used to query OpenWeatherMap for the current weather at your location, which can be attached to an emotion record. Location data is never uploaded to our servers, and no location history is stored.
• Photo Library: Used only when you actively choose to share and save a share card containing your emotion illustration. We do not read or write to your library without your explicit action.

2. Data Storage Within the App

EmoLog stores in your device's local storage:

• Emotion records: The selected illustration ID, emotion coordinates (positive/negative and calm/aroused axes), your text input, weather info, location (city name), and timestamp.
• Language preference: The display language you selected in the app.
• Onboarding status: Used to determine whether to show the onboarding screens again.

All of the above exists only on your device and is never sent to any server or third party.

3. Data We Do Not Collect

Apart from the message and email you voluntarily submit through the in-app "Contact Us" form, we do not collect:

• Name, phone number, social media accounts, or other personal identifiers
• Location history
• Usage analytics data
• Crash reports
• Advertising IDs or tracking identifiers

4. Third-Party Services

• OpenWeatherMap: Used to fetch current weather data. Only your current geographic coordinates are sent (no personal information), and they are not stored in our systems.
• Supabase (Edge Function): Used to relay messages from the "Contact Us" form. Handles your message content, optional email, and app metadata only when you actively use that feature.
• Resend: Email delivery service that forwards "Contact Us" messages to our support inbox.

Please refer to each provider's official website for their privacy policies. Data is processed only transiently to deliver messages, and is not used for advertising or tracking.

5. Data Deletion

You can delete any emotion record within the app at any time. Deleting the EmoLog app itself also removes all records stored on your device. Since data is never uploaded, there is no need to request deletion from us.

6. Contact Us (In-App Feedback)

When you submit a message through the in-app "Contact Us" form, the following data leaves your device:

• The category you selected and the message content (required)
• Your reply email (optional; we cannot reply to you if left blank)
• App version, platform (iOS / Android), and language preference, for troubleshooting

These data are transmitted over HTTPS to an Edge Function hosted on Supabase, which then uses Resend (an email delivery service) to send the message to our support inbox. Supabase and Resend act as data processors and handle this data only transiently for the purpose of delivering your message.

Purpose: Solely to reply to your inquiry and improve the app. This data is not used for advertising, tracking, or marketing; is not linked to your in-app emotion records (we cannot access those in the first place); and is not shared with any other third party.

Retention and deletion: We retain correspondence in our support inbox for as long as needed to reply. If you would like us to delete data you previously submitted via "Contact Us", please email [email protected].

7. Children's Privacy

EmoLog is not directed at children under 13. We do not knowingly collect personal data from children; the "Contact Us" feature is optional and only triggered by explicit user action. If you believe a child has submitted personal data through this feature, please email [email protected] and we will delete it.